Jacket



FIG. 1 is a right front perspective view of a jacket according to the present design;

FIG. 2 is a front view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof; and,

FIG. 5 is a back view thereof.

The broken lines represent parts of the article that form no part of the claimed design. 

CLAIM The ornamental design for a jacket, as shown and described. 